The direct impetus for the uncertainty principle was a letter from Pauli. Max Born had started things with his statistical interpretation of Schrödinger's wave equation. He treated the function as a probability wave, rather than a matter wave, as Schrödinger had proposed. Pauli theorized from this statistical interpretation the existence of a "dark point," where we cannot exactly observe the path of a particle. This meant that if the position of the particle were controlled, then its momentum had to be uncontrolled.Heisenberg extended this idea to focus not on an uncontrollable variable but rather the indeterminacy of both in a reciprocal manner. That is, the more accurately we measure one variable, the less accurately it will be possible to measure the other. The reason for
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Uncertainty Principle, Statistical Interpretation, velocity times mass, Pauli. Max Born, Schr ödinger